These would be very worthy videos since there is air in the Lunar Module and they don't wear the heavy spacesuits, so one could see how they behave on the Moon in a breathable atmosphere and without heavy spacesuits.
While not on the lunar surface, it turns out that in-flight footage of donning and removing suits inside the LM during the Apollo 16 mission does exist.
One source is https://www.sciencephoto.com/media/239627/view however the origin is presumably a government document available from other places as well.
The perspective is surprisingly good for cramped quarters, but that's likely in no small part due to the fact that it was shot either through or in the docking tunnel by Ken Mattingly who would remain in the command module when the LM separated to land. Likely it would have been much harder to capture anything interesting with an unmanned camera located in the cramped confines of the LM itself.
Today we might be able to put little recording webcams all over the interior surfaces and select unblocked shots later, or perhaps even do some sort of synthetic image stitching to combine captures from multiple points. But even a single wide-angle motion picture camera on the docking tunnel cover would have been a fair amount of complexity; the interesting sights were outside.
The Lunar module had a habitable volume of 160 cubic foot (4.5 cubic metre). The crew compartment floor was about 36 by 55 inches (3 by 4.6 foot or 0.91 by 1.4 metre)
There was a circuit breaker damaged accidentally by Aldrin on Apollo 11. The breaker would arm the main engine for lift off from the Moon. So all later astronauts knew they had to behave slowly and carefully not to damage anything inside the small cabin.
See this PDF from NASA.